Questions tagged [turbine]
A set of rotating blades that extracts power from a flow. In aviation this primarily refers to the section of a gas turbine that extracts power from the combusted gases, as part of a turboshaft, turboprop, or jet engine.
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wake effect on downstream turbine
I want to perform fatigue analysis on downstream turbine blades, but I want to do this analysis with the aerodynamic forces caused by wake effects.Do you have a recommended solver to obtain such data?
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I'm having a hard time conceptualizing this statement from "The Jet Engine" by Rolls-Royce
This is taken from section 21 of Chapter 3, Compressors that discusses axial flow compressors in turbine jet engines.
The more the pressure ratio of a compressor is increased the more
difficult it ...
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What kind of combustor are these engines using?
I'm familiar with the wikipedia-standard can/can-annular/annular style combustors, but I've found a design that don't seem to fit into any of these categories, used in a number of engines such as the ...
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Turbocharged vs Turboprop cruise altitudes
I know that both turbocharged & turboprop engines offer better performance above 10,000 feet than normally aspirated piston aircraft. My question is to what degree do their optimal cruise ...
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What is the general operating temperature of Free Piston Turbine Engines?
The turbine in turbine engines can face temperatures from the combustion chamber up to 1700ºC, but I can't find any information on the operational temperature of free piston turbine engines.
I'm ...
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What are the common sensors/ways that reverse thrust is measured for turbines?
I am looking for a sensor to measure reverse thrust on a small hobby turbine engine, a jetcat p100-rx. I did not find clear ways industry measures reverse thrust from previous searches online and was ...
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Why aren't ducted rotors used in gas turbines?
I am wondering why (for what I know) no gas turbine employs ducted enclosures for blade arrays on rotor stages.
I tried to search the internet for resources but I couldn't find anything related (so I'...
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Why TBM 850 checklist calls for high idle during taxi
According to the TBM 850 checklist, at 13% NG you introduce LO Idle. But before taxi all TBM 850 pilots select high Idle. I was under the impression that high idle is selected for takeoff. Anybody ...
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Why do only turboprops have ground/flight idle selections?
Why is it that only turboprops have a pilot controlled flight/ground idle and not jets?
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Aerofoil selection for a Horizontal turbine [duplicate]
I'm currently having a bit of an issue selecting the type of aerofoil I would want to use in my ridge mounted wind turbine honours project. I want to select a high lift generating aerofoil at low ...
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The phase having the hightest TIT for a flight mission
I have a query concerning the turbine inlet temperature (TIT) in the context of various flight mission phases. Specifically, I'm trying to ascertain at which phase the gas turbine reaches the highest ...
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Is there a reason for the difference in turbo prop exhaust placement?
The TBM 940 and Cessna caravan both have the PT6A turbo prop engine. The sister caravan has one single exhaust stack under the engine cowling, and almost all other small turbo props have dual exhaust ...
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Do compressors and turbines in jet engines end with rotor or stator?
I am trying to understand compressor and turbine design principle based on stators and rotors.
I know that turbines and compressors both have a rotating and fixed section that constitute a stage.
For ...
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What is the purpose of variable stator vanes in the power turbine part of a free shaft gas turbine?
both M1 Abrams tank and T-80 tanks have free shaft gas turbine engines and both of their engines have variable stator vanes in their power turbine part. It says in the picture below that these ...
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Why is the turbine that drives the compressor is placed before the free turbine in a gas turbine engine?
For example in the picture below we can see that the turbine of the compressor is just behind the combustion chamber and gets the hottest gas and i think therefore can extract the most energy? The ...
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